Scatter Plots

Front

What is a scatter plot?

Back

A scatter plot is a graphical representation of two variables, showing the relationship between them using points on a Cartesian plane.

Front

What does a negative association in a scatter plot indicate?

Back

A negative association indicates that as one variable increases, the other variable tends to decrease.

Front

How can you determine if a scatter plot shows a linear relationship?

Back

A scatter plot shows a linear relationship if the points roughly form a straight line, indicating a consistent rate of change between the two variables.

Front

What is the purpose of using scatter plots in data analysis?

Back

Scatter plots are used to visualize the relationship between two quantitative variables, helping to identify trends, correlations, and potential outliers.

Front

What does it mean if a scatter plot has a strong correlation?

Back

A strong correlation means that the points on the scatter plot are closely clustered around a line, indicating a strong relationship between the two variables.

Front

What is the significance of the slope in a linear relationship shown in a scatter plot?

Back

The slope indicates the rate of change between the two variables; a positive slope means both variables increase together, while a negative slope means one variable increases as the other decreases.

Front

How can you estimate values using a scatter plot?

Back

You can estimate values by finding the corresponding point on the scatter plot and reading the value of the dependent variable based on the independent variable.

Front

What is the difference between correlation and causation in the context of scatter plots?

Back

Correlation indicates a relationship between two variables, while causation implies that one variable directly affects the other.

Front

What does it mean if a scatter plot shows no correlation?

Back

No correlation means that there is no discernible relationship between the two variables, and changes in one do not predict changes in the other.

Front

How can outliers affect the interpretation of a scatter plot?

Back

Outliers can skew the results and may lead to misleading conclusions about the relationship between the variables.